good size portable ssd as backup advice?

Discussion in 'Mac Accessories' started by iamrawr, Apr 16, 2010.

  1. iamrawr macrumors 6502


    Apr 16, 2010
    New Jersey
    my first post! =D been lurking in these forums ever since i heard of the quad macs =] pretty excited during those long months of waiting!

    so i'm thinking of buying an external hard drive to back up my files.
    im thinking of getting a portable one because i travel alot. just a good size and light enough to be able to carry in a laptop bag.

    i'm really curious of buying a ssd drive because i heard it's more stable than a hdd, which is a good plus. it's just the price that keeps we away from it... especially since i plan to buy a new mac in the summer (hoping for the student promo)

    so... for the real question...

    should i buy a ssd drive that's about 50gb? or is that size too small for a backup unit?

    cuz i've been a windows user for a few years and i've never owned my own mac (yet), plus i've never used system restore, nor did it work for me. so i'm unfamiliar with the system back up process, especially with time machine.

    thank you =D
  2. Hellhammer Moderator


    Staff Member

    Dec 10, 2008
    First of all, the new MBPs are NOT quad cores, they are all dual cores. Using SSD as backup drive is useless as USB or FW will be limiting their speed A LOT. Normal HD is enough as backup drive, 500GB is less than 100$
  3. spinnerlys Guest


    Sep 7, 2008
    forlod bygningen
  4. nanofrog macrumors G4

    May 6, 2008
    Stick with mechanical for backup purposes, and there's several reasons behind it:

    1. USB & FW are too slow to utilize SSD's performance

    2. Cost/GB, which you're quite aware of

    3. Write cycle lifespan issues (data published by SSD makers is a statistical juggling act - they take the worst 10% of cells, and toss that data out thus only generating data off of the best 90%). Nor do their test methods work with real world scenarios, such as a drive's having data that remains (testing is done by rotating writes to ALL cells, which doesn't happen IRL, as you will have data that remains on the disk = less available capacity for wear leveling techniques). It's very misleading IMO. Ultimately, there's no long term data to truly indicate how well SSD's will hold up, especially under high write conditions.

    Hope this helps. :)
  5. iamrawr thread starter macrumors 6502


    Apr 16, 2010
    New Jersey
    Thanks everyone for the help =) I will stick to hdd since it's way better value. I guess I'll just wait till they make SSD cheaper and more versatile.

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